Door lock and latch.



y T. P. ARSNEAU. DOOR LOCK AND LATCH.

APPLICATION FILED DEC. Il I9I5- QXRtneme/a T. P. ARSNEAU.

DOOR LOCK AND LATCH.

APPLICATION man 050.11.1915.

1,207,123. Patented Dee. 5,1916.

'a SHEETS-SHEET 2.

T. P. ARSNEAU.

DOOR LOCK AND LATCH. APPLICATION msu Dic. l1. |915.

1,207,123. Patented Dec. 5,1916.

3 SHEETS-SHEET 3.

UNrrED s'm'rns PATENT OFFICE.

THOMAS IP. ARSNEAU', OF PORTLAND, OREGON, ASSIGNOR OF ONE-THIRD TO OLIVE Si ACKER, OF LEOLA, SOUTH DAKOTA.

DOOR LOCK AND LATCH.

Specication of Letters Patent.

Patented Dee. 5, 1916.

Application led December 17, 1915. Serial No. 67,443.

To all whom t may concern:

Be it known that'I, THOMAS P. ARSNEAU, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented certain new and useful Improvements in Door Locks and ILatches, of which the following is a specification.

My invention relates to locks and mo-re particularly to that class in which the latch is actuated by a sliding movement of the knob spindles.

The object of my invention is to provide an eflicient and practical lock of the character described which is operated by a push and pull movement of the knobs.

Another object is to provide locking means for holding the device inoperative from the outside. This locking means being operated from the outside by a key and on the inside by a simple finger lever and' twist of the knob.

A further object is to combine the latch and locking members by pivoting the lock in the spindle and placing the cylinder con- 'trol in the outside knob.

' 6 is a view similar to Fig. but'showing the knob turned to the right and the latch in engaged position. Fig. 7 is aperpendicular center sectional view of my device, Fig. 8 is a top plan view ofthe cylinder lock, Fig. 9 is a sectional View on the line 9--9 of Fig. 8, Fig. 10 is a rear end view of the cylinder lock, Fig. 11 is a vlew of the two different kind of tumblers embodied in the lock, and Figs. 12 and 13 are views of the key used to operate the tumbler lock. p

Referring more partlcularly to the drawings, the numeral 1 designates a portion of a door having my lock therein. A clrcular casing 2 is embedded 'in an aperture 3 in the door, and a second aperture 4 is made 1n the edge of the door in alinement with an aperture 5 in the casing 2. The aperture 4 has a metallic casing 6 mounted therein, the casing 6 having lugs 7 and 8; the lug 8 havmg an aperture 9 therein.

A latch 10 is mounted in the aperture 4 and comprises a rounded bar portion 11, a rectangular portion l2 having an aperture 13 therein reduced in size forming an aperture 14 and shoulders 15 and 16 to form bearing faces, the opposite end of the aperture 13 has a bearing face 17, shoulders 18 for abutting theV casing 6 and a reduced shank member 19 adapted to be inserted in a socket 20 on the casing 2. Shoulders 21 are formed by reducing the portion 19. A coil spring 22 surrounds the shank 19 and abuts the shoulders 21 and casing 2 and normally urges the latch outward in operative position.

The latch 10` is operated by the spindle 23 having hollow knobs 24 and 25 on its respective ends. The lspindle 23 comprises an cnlarged cylindrical portion 26, a wedge shaped cam portion 27 having bearing faces 28 and 29 adapted to engage the bearing faces 15, 16 and 17 and a reduced shank portion 30.

Plate 31 having projections 32 extending inwardly is secured tothe outside of the door forming the outside of the lock casing and also has an aperture 33 therein surrounded by a flange 34 and serving as a bearing for the spindle 23. A second plate 35 is securedto the inside of the door and has apertures 36 therein. A large aperture 37 in the center of the plate 35 is surrounded by an outwardly extending bearing flange 38. The aperture 37 has a butting or stop flange 39 extending about half way around from the bottom of the aperture.

The iange 38 is cut away at 40 about onethird of its distance at the bottom. The

edges of the cut away portion extend' straight at 41 and then curve upwardly at 42.

The knob 25 has its shank 60 cut away at 43, the out away portionextends about onethird the distance around the'shank from the bottom at its outer edge and extends inwardly for an appreciable distance and then converges at 44 forming a narrow slotl 45. A lug 46 is formed on the inner end of said shank. This construction is for a purpose hereinafter described.

is pivotally mounted in a slot 52 in the shank 30, and adapted to engage the flange- 39. The drop `catch comprises a downwardly extending catch portion 53 adapted to engage the flange 39, a nger engaging portion 53 and -a balance portion 54. The drop catch 51 is so mountedv that the balance portion 54 will normallykeep the catch 53 out of engagement with the flange 39.

vA cylindrical lock 47 controls the releasing of the'drop catch 51 from the outside and comprises the cylindrical portion 26 of the spindle 23,' which has a slot 58 formed therein, a plurality of tumbler guides 59 are formed in the sides of said slot and a plurality of tumbler sockets 60 are formed in the bottom of the slot 58 in alinement with the guides 59.

A longitudinal cylindrical aperture 61 is formed inthe portion 26 and the spindle 23 for the reception of the rotary plug 62. The plug comprises a portion 63 and a reduced portion 48. The portion 63 has a plurality of tumbler sockets 64 formed therein and a key slot 65. A member 49 is secured in the reduced portion 48 of the lock cylinder ad jacentits end and adapted to engage the lug 46.

Tumblers 66 are inserted in the sockets 64 l and tumblers 67 are inserted in the sockets 60 and have their reduced ends 68 extending into the sockets 64. a A spring 69 is mounted lin the slot 58 a holds the tumblers in position. 'The spring 69 is held in place by a binder 70 which is held in grooves 71 formed therein.

A key 72 having recesses 73 and -a groove 74 -formed therein is used to operate the lock described.

When the device is assembled the parts are held together between the platesl and 35 by bolts 55 passing through the apertures 36 and into the projections 32. One of said boltsv passing through the aperture 9 in the lug 8 of the casing 6. y y

The outside knob is screw-threaded on the -portion 26 of the spindle and the inside knob is held in a sliding position by a coil spring 56 surrounding the shank portion 30 of the spindle vand abutting the flange 39 andthe whole is held onthe outer end of the Spindle by a screw 57.

The operation of the device is as follows: To open the latch the outer knob 'is pushed or the inner .kn'ohf is pulled thus forcing the wedge shaped cam 27 into the aperture 13 and its bearing face 29 contacts with the face 17 thus forcing the latch bolt 10 inward and allowing the door to open. To lock the latch .and cause the outer knob to be inoperative unless a key is used it is only necessary to raise the linger engaging portion 53" of the drop catch 51 with the finger, thus engaging the catch 52 with the flange 39 and then turn the inside lmob 25 to the right to holdthe catch in this position. When the knob is thus turned the lug 46 engages the member 49 of the cylinder lock and when the key is inserted it raises the tumblers 66 and they in turn raise the tumblers l67 so that their reduced ends 68 are freeof the sockets 64 and thus allow the cylinder to turn and the member 49 to bear against the lug 46 and force the knob 25 around thus releasing the portion 53' of the drop catch and allowing the balance portion 54 t'o drop and raise the' catch 53 from engagement with the'iiange 39. To lock the latch 10 and cause the outer knob 24 to be inoperative from any means,

even a key, it is only necessary tov raise the l i finger engaging portion 53 ofthe drop catch 51 with the finger, thus engaging the f catch 52 with the -flange 39 and then turn the inside knob 25 to-,the left and thus remove the lug 46 from the path vof the member 49. The only lmeans of releasing the drop catchV is to turn the inside knob to its normal position thus releasing the portion 53 and allowing the balance portion 54 to drop and raise the catch 53 from engage ment with the flange 39. rlhe spring 22 nor-l mally urges the latch 10 into its operative position after it is withdrawn by the operation of either knob, andthe pressure of the bearing face 17 against the bearing face 29 of the spindle forces the knobs into their normal position as the latch returns overcoming the tendency of spring. 56 to keep the knob 24 in its inward posltion. It' willbe understood that I may make minor changes in construction and arrange ment of parts of this invention without departing 'from its scope.

Having thus described my invention what I claim is:

1. 'A device of the class described comprising a casing, a draw latch having a rectangular aperture therein, a knob spindle adapted to have a sliding movement and passing through said aperture, knobs on said spindle, a cam on said spindle, 'said cam being adapted to contact with the ends of said aperture to operate said latch, a rotary plug ofa tumbler controlledlock mounted in one'end of said sp1ndle, a projection on 2. A push and pull lock comprising a casing, a draw latch having an aperture therein, and a knob spindle passing through said aperture, knobs on said spindle, one of said knobs being revolubly mounted and the other of said knobs being stationary on said spindle, a catch pivoted in a slot in said spindle adjacent said revolubly mounted knob, said catch being adapted to 109k said spindle against movement when raised to engage a flange formed in said lock and said revoluble knob turned to hold said catch in position, and means for releasing said catch, said means comprising a tumbler controlled lock having its plug revolub-ly mounted in said spindle, a lug on the end of said plug extending through said spindle and adap-ted to engage a lug on said revoluble knob and revolve it to release said catch.

3. A lock comprising a' casing, a draw latch, a knob spindle adapted to operate said draw latch, knobs on said spindle, one of said knobs being revolubly mounted, and means for locking said spindle against movement, said means comprising a catch pivoted in said spindle adjacent one end and adapted to be held in locked position by said revoluble knob, and means for releasing said catch, said means comprising a tumbler controlled lock having its plug revolubly mounted Within said spindle, a lug on the end of said plug extending through said spindle and adapted to engage said revoluble knob and return it to its normal position releasing said catch.

4. In combination with .a latch comprising a casing, a draw latch, a knob spindle' adapted to operate said draw latch, knobs on said spindle, one of said knobs being revolubly mounted, a catch pivoted in one end of said spindle and adapted to lock it against movement and adapted to be held in said position by said revoluble knob, means for releasing said catch, said means comprising a cylinder controlled lock having its plug revolubly mounted in said spindle, a lug on said plug projecting through said spindle, and adapted to revolve sald revoluble knob to release said catch.

In testimony whereof I hereto afiix my signature.

THOMAS P. ARSNEAU. 

